S55SL — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Slovenia Most frequent locator attributed to this token: JN75

Receiver-side FT8 activity involving S55SL, decoded by SO8OO in southeastern Poland. 253 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 18 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-15.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 253 FT8 messages attributed to S55SL as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (59%), followed by 80 m (32%) and 20 m (7%). Most decodes (85%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -2 dB.

Overview

253
Messages attributed
18
UTC dates decoded
37
Active 15-min windows
-2 dB
Estimated median S/N

Bands

160m · 1 80m · 82 40m · 150 20m · 17 10m · 3
First attributed message: 2026-06-07
Last attributed message: 2026-10-15 10:22 UTC

Observed FT8 message patterns

Attributed sample
253 messages
Active dates
18 UTC dates
Estimated median S/N
-2 dB
Estimated 10th-90th percentile
-14 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 43, strong (≥ -8 dB) 193.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with S55SL in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to S55SL

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
JN75 · 226 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
708 km (approx.)
Last such locator decoded
2026-10-15 10:20 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandS55SL S/NCounterpartCounterpart S/NMsgsCapture
10-15 10:20 40m -10 / - Z61DX -14 / -8 4 ✓ Full exchange observed
10-07 17:34 40m +2 / - VR2VOD - / - 9 Partial capture
10-07 17:31 40m -1 / - VU3OSA - / - 4 Partial capture
10-06 08:02 40m -5 / - AO5CV - / -5 10 ✓ Closing fragment
10-06 07:57 40m -11 / - AO5CV - / - 3 Partial capture
09-29 17:04 40m +7 / - 3D2USU - / - 4 Partial capture
09-29 16:57 40m +2 / - C31HS - / - 8 Partial capture
09-29 16:50 40m +5 / - C31HS - / - 5 Partial capture
09-29 16:44 40m 0 / - C31HS - / - 6 Partial capture
09-23 18:39 40m -21 / - RI1FJZ - / - 2 Partial capture
09-04 19:39 80m -4 / - RI1FJL - / - 20 Partial capture
09-04 19:31 80m +1 / - RI1FJL - / - 3 Partial capture
09-04 19:22 80m +2 / - RI1FJL - / - 10 Partial capture
09-04 19:13 80m 0 / - RI1FJL - / - 13 Partial capture
09-04 19:07 40m -1 / - RI1FJL - / - 9 Partial capture
09-04 18:59 40m -2 / - RI1FJL - / - 2 Partial capture
09-03 19:47 40m +6 / - RI1FJL - / - 8 Partial capture
09-03 19:42 40m +6 / - <...> - / -6 5 Partial capture
09-02 20:22 40m +6 / - RI1FJL - / - 13 Partial capture
09-01 21:02 40m -8 / - RI1FJL - / - 8 Partial capture
09-01 20:56 40m -4 / - RI1FJL - / - 6 Partial capture
09-01 18:41 80m -11 / - P29YY - / - 2 Partial capture
08-30 20:19 40m -10 / - VJ6X - / - 6 Partial capture
08-30 20:17 40m -4 / - RI1FJL - / - 3 Partial capture
08-16 11:46 10m - / +10 Z61DX 0 / - 2 ✓ Closing fragment
08-13 20:12 80m +6 / - D2UY - / - 9 Partial capture
08-13 20:02 80m -5 / - D2UY - / - 10 Partial capture
08-13 19:57 80m -4 / - D2UY - / - 4 Partial capture
08-04 17:41 40m -20 / - VJ6X - / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m 
UTC    dB Audio  Message
173245  -6 3088  VU3OSA S55SL JN75
173415  +2 3088  VR2VOD S55SL JN75 (x9)
102015 -14  725  Z61DX S55SL JN75
102100 -14  727  S55SL Z61DX +14
102115  -9  726  Z61DX S55SL R-08 (x2)
102245 -12  726  PE9JAN S55SL RR73
160m 
UTC    dB Audio  Message
202415 -20 1140  RI1FJZ S55SL JN75
80m 
UTC    dB Audio  Message
194145  -4 2054  RI1FJL S55SL JN75 (x15)
10m 
UTC    dB Audio  Message
113230 -22 1882  S55SL DN9JGL JO41
114645  -1  784  S55SL Z61DX +10 (x2)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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